Haha. Nope, pretty much mastered it already. Very easy to learn this car.
Catch can is nothing more than preventive maintenance. It can’t hurt. Might not help any, but for $50 or whatever, it can’t hurt.
Slotted rotors are just a bit better than regular (and don’t run the risk of breaking/cracking like drilled). This is a big car, need to have good brakes.